Do Legally Prescribed Drug Produce the Metabolite Benzoylecgonine?
Q: In what legally prescribed drugs is benzoylecgonine an ingredient.
-By Joann, female age 56
The legally prescribed drugs do not produce benzoylecgonine as a metabolite.
That is the reason this metabolite is used for cocaine drug screening, almost as a fingerprint testing. It is very specific.
Though there are some anesthetics including lidocaine, novacain, that may produce metabolites that are similar in structure to benzoylecgonine, so labs with cruder instruments may label you positive if you are consuming these medications. In that case, you may request for confirmation test by GC/MS.